1. Electric Lighting 1 Slide 1

2. Thomas Edison 2 Slide 2

3. Types of Lighting Systems Incandescent lamps Tungsten Halogen Lamps Fluorescent lamps High pressure sodium lamps Low pressure sodium lamps Mercury vapour Metal halide HID lamps 3 Slide 3

4. Incandescent Lamps 4 Slide 4

5. Tungsten - Halogen Lamps 5 Slide 5

6. High Pressure Sodium (HPS) Lamps 6 Slide 6

7. 7 Fluorescent Lamps Slide 7

8. Metal Halide Lamps 8 Slide 8

9. Mercury Vapor Lamps 9 Slide 9

10. Types of Lighting Systems Comparing lamps Type of Lamp Lum / Watt Color Rendering Index Typical ApplicationLife (Hours) Rang e Av g. Incandescent8-1814ExcellentHomes, restaurants, general lighting, emergency lighting 1000 Fluorescent Lamps46-6050Good w.r.t. coating Offices, shops, hospitals, homes 5000 Compact fluorescent lamps (CFL) 40-7060Very goodHotels, shops, homes, offices 8000-10000 High pressure mercury (HPMV) 44-5750FairGeneral lighting in factories, garages, car parking, flood lighting 5000 Halogen lamps18-2420ExcellentDisplay, flood lighting, stadium exhibition grounds, construction areas 2000-4000 High pressure sodium (HPSV) SON 67- 121 90FairGeneral lighting in factories, ware houses, street lighting 6000-12000 Low pressure sodium (LPSV) SOX 101- 175 150PoorRoadways, tunnels, canals, street lighting 6000-12000 10 Slide 10

11. Worksheet 1 11 Slide 11

12. 'Luminous Flux' Part 2 12 Slide 12

13. Worksheet 13 Slide 13

14. Part 3 Lighting distribution 14 Slide 14

15. Designing Sheet 15 Slide 15

16. Conclusion Questions worksheet 3 16 Slide 16

17. Thank you for your attention 17 Slide 17